Edge tabs for notebook
US-11331941-B2 · May 17, 2022 · US
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Perforated or punched sheets
Perforated or punched sheets · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B42D1/004 |
| Official title | {Perforated or punched sheets} |
| Display label | Perforated or punched sheets |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sewn stack of absorbent sheets
US-11299305-B2 · Apr 12, 2022 · US
Edge tabs for notebook
US-2021252899-A1 · Aug 19, 2021 · US
Edge tabs for notebook
US-11027569-B2 · Jun 8, 2021 · US
Edge tabs for notebook
US-2020171873-A1 · Jun 4, 2020 · US
Binding system for retaining bound components
US-2020130395-A1 · Apr 30, 2020 · US
Bound edge tabs for notebook
US-10596845-B2 · Mar 24, 2020 · US
Sewn stack of absorbent sheets
US-2020069120-A1 · Mar 5, 2020 · US
Binding system for retaining bound components
US-10569590-B2 · Feb 25, 2020 · US
Sheet with spring strip
US-2019337320-A1 · Nov 7, 2019 · US
Sewn and perforated stack of absorbent sheets
US-2019092504-A1 · Mar 28, 2019 · US
Reinforced Pocket Device
US-2018290482-A1 · Oct 11, 2018 · US
Reinforced pocket device
US-10017002-B2 · Jul 10, 2018 · US
Binding system for retaining bound components
US-2018037047-A1 · Feb 8, 2018 · US
Binding system for retaining bound components
US-9862221-B2 · Jan 9, 2018 · US
Sheet
US-9821592-B2 · Nov 21, 2017 · US
Booklet binding member
US-D795344-S · Aug 22, 2017 · US
Sheet
US-2016089925-A1 · Mar 31, 2016 · US
Presenting Media Content to Visually Enhance a Pop-up Book
US-2016059609-A1 · Mar 3, 2016 · US
Connected disk binding mechanism
US-9266378-B2 · Feb 23, 2016 · US